How do I squelch McAfee pop-ups?

The situation:

The computer hosts a variety of accessibility related software. It is constantly listening for alternative user input from someone who cannot use the keyboard and relies only on voice. Sometimes, even visual feedback is not available.

Unfortunately, McAfee keeps popping up messages on how useful it is, talking about which devices ought to be protected that are not yet, or how many connections were blocked, etc.

The solution I want:

Unless there is an immediate dire situation, don't pop up. Ever. Sit quietly in the taskbar and do the best that you can do. Do not disturb the user who already has to jump through extra hoops to use the computer.